Ok I bought a macbook air the other day thinking 4gb would be fine, then all of the sudden I checked my page outs to find that there had been 2.47GB! (5.45GB page ins, and 1.49GB swapped) I never noticed my computer getting slow, and I'm pretty sure I just checked yesterday and there were no page outs. The only intensive thing I did today was minecraft, could that have caused all these page outs? I thought minecraft was only processor intensive. My uptime is "16:09 up 1 day, 3:30, 2 users, load averages: 1.73 1.98 1.80" Now I'm worried about running out of ram; I did a test the other day opening up the most programs I thought I would reasonably use at a time (iTunes, iPhoto, Safari with 5+ tabs, calendar, app store) with still over a gb of RAM to spare, but Minecraft seems to have pushed this way over the edge. Should I exchange this for an 8GB while I'm still in the 14-day return window? edit: Is it safe to use a program to clear inactive memory? Because I have over 1000MB of it.